Steam-engine



2 SheetsSheet' 1.

(No Model.)

J. T. KENWORTHY, D. SEXTON & A. THOMPSON.

STEAM ENGINE.

Patented Mar. 8, 1887.

(No Model.) 2 SheetsSheet 2.

J. T. KENWORTHY, D. SEXTON 82; A. THOMPSON.

I STEAM ENGINE. No. 359,160. Patented Mar. 8, 1887.

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UNITED STATES PATENT OFFICE.

JAMES T. KENXVORTHY, DANIEL SEXTON, AND ALBERT THOMPSON, OF GOLTON, CALIFORNIA.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 359,160, dated March 8, 1887.

Application filed August 11, 1886.

To aZZ whom it may concern:

Be it known that we, J AMES T. KENWOR- THY, DANIEL SEXTON, and ALBERT TiroMP- soN, all of Golton, San Bernardino county, State of California, haveinventcd an Improvement in Engines; and we hereby declare the following to be a full, clear, and exact descrip tion of the same.

Our invention relates to the class of engines; and our inventiop consists in the arrangement of cylinders and their connection with the crank-shaft, the valve-chests and their valves and means for operating them, and their connection with the piston-rods, all as we shall hereinafter fully describe.

The object of our invention is to provide a simple and effective engine adapted to be operated by steam, water, or hot air, as may be most convenient.

Referring to the accompanying drawings for amore complete explanation of our invention, Figure 1 is a plan of our engine, the cover of the left-hand steam-chest being removed. Fig. 2 is a vertical longitudinal section of adjacent parts. Fig. 3 is a cross'section on line X X, Fig. 2.

A is the engine-bed.

B are the cylinders. There are four of these-one at each corner of the bed.

0 is the driving-shaft, having end cranks, c, and the driving-pulley c.

The pistons b of the cylinders have rods 6, to which are-connected the pitmen I). These pitmen are connected with the cranks ctwo to each crank. D is the valve-chest or steambox, having the inlet-port d and the outletports d,whieh latter communicate with the inlet-ports b at the rear ends of the cylinders. The valve-chest has also the exhaust-ports (1 which connect with the exhaust ports a in the bottom of the bed A. In the forward ends of the cylinders, on their under sides, are the exhaust-ports bflwhich connect with the ports Serial No. 210,642. No model.)

in one direction and is attached to one end of the valve,and the other chains are attached to the other end of the valves and wind upon the shaft in the other direction.

The shafts are oscillated by means of the cranks G on their ends, and the connecting rods 9 joining them with cross-heads H on the piston-rods of the cylinders.

The operation of our engine is as follows: Steam or other fluid, as the case may be, is admitted through the port d to the valve-chest, and is fed to the cylinders through the ports d b, the major portion flashing or passing out through the ports b at the endofthe stroke and the remainder exhausting on the return-stroke through the ports d By this arrangement of the four cylinders the power of two cylinders is exerted upon each crank all the time.

The arrangement of valves is simple and effective and possesses the advantage of permitting the convenient oiling of the shaftbearings, their journals being reached from the outside. The valves, moreover, move evenly and with little friction.

This engine can be operated by stean1,water,

or hot air, as may be most available,or by another expansive medium.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In an engine, the steam-chest D, provided with ports d d connecting it with the cylinders, as described, in combination with the slide-valves E, controlling the ports of the chest, the oscillating shafts F, mounted in the sides of the chest, and the chains or steel ropes f, connected with the shafts and with the valves, whereby the latter are reciprocated, substantially as herein described.

2. In an engine, the four oppositely arranged cylinders B, having pistons b and rods b and suitable inlet and exhaust ports, I) If, and the drivingshaft O, having end cranks, c, and pitnien 1)", connecting the two opposing pistons with each crank, in combination with heads, all arranged and adapted to operate the valve-chests D, having entranceports d substantially as herein described. and portsd'd communicating with the cylin- In witness whereof we have hereunto set .der-ports, the slide valves E in each chest, our hands. 5 the oscillating shafts F, mounted in the valve- JAMES T. KENWORTHY.

chests, the chains or steel ropes f, connecting c DANIEL SEXTON. the shafts with the valves, the cranks G on ALBERT THOMPSON. the ends of the shafts F, the cross-heads H on VVIt/UQSSBSI the piston-rods of the cylinders, and the rods JOHN HALOROW, IO 9, connecting the cranks G with said cr0ss- BERNARD HARVEY. 

